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Old 8th May 2013, 09:57
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SpazSinbad
 
Join Date: Jul 2008
Location: Australia OZ
Age: 75
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Cats n'Flaps Redux Rhino (perhaps relevant to F-35C - eventually)

Troubles with hooks/flaps? Don't believe it. It can be easily faked....

Paddles monthly May 2013
Half-Flap Rhino Brad “Barf” Byers

http://hrana.org/wp-content/uploads/...hlyMay2013.pdf

"...The question is, can we, and more importantly should we, make half-flaps the standard configuration for Rhinos during CV operations?...

...That said, the old adage applies, “there is no free lunch.” The consensus during carrier suitability testing was that there is a slight improvement to handling characteristics at half-flaps (it’s worth noting that, historically, it doesn’t get much easier than landing a Rhino on the boat)....

...To reiterate an earlier statistic, a half-flap Rhino will hit the arresting gear 8 kts faster than a full-flap Rhino, a 7% increase in arresting gear loads and a FLE impact to the arresting gear. With the bulk of our Air Wings now being comprised of Rhinos, this is not a moot point. There are other potential consequences that are worth investigating in addition to arresting gear FLE issues. A Rhino recently taxied out of the LA, following an arrested landing, with its hook point dangling by the hook-point bolt at one end. One end of the hook-point bolt had sheared off completely. This example is the most dramatic of several recent HAZREPS highlighting Rhino hook-point issues. Airframe FLE is also a concern that must be evaluated.

From a layman’s perspective, there could be several causes for these hook point issues. Rhinos selecting burner in the wires, a 480 standard single-weight setting (this shouldn’t be the issue), or (drum roll please) pilots selecting half-flaps on their own after hearing Paddles announce the winds. You heard that right. I recently heard a rumor that some pilots are hearing the winds call and selecting the flap setting that they prefer. This is a serious safety concern that needs Paddles’ immediate attention. If you have individuals in your Air Wing who think it’s OK to select their flap setting based on your winds call, you need to put an end to that yesterday...."

There is an issue with F-35C performing better in FCLP with half flap rather than full flap at moment (an ongoing testing item as I understand).
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